[FEATURE] Add jsdoc for BrowserMicroSentryClient class methods

[alxpsr]

Docs improvements

Is your feature request related to a problem?

Tried to figure out purposes of all methods inside library classes and it was not obvious and quite difficult without calling them.
It's gonna be very helpful if you can add js-doc for each methods and props

Describe the solution you'd like

Add js-doc for methods

Additional context

Anyway highly appreciate your efforts to develop such library. Thank you guys

[sevaru]

We are planning to improve our documentation (probably next year).
As you suggest, we will also consider adding more inline documentation.

Thank you for your feedback!